president obama and mitt romney say they are confident they will win the november election with different >> terry: major milestone for bart in the southbound expansion to san jose. project has created thousands of construction jobs, when completed it may help support 20,000 high-tech jobs. it's new tunnel that will whisk passengers under fremont's lake elizabeth. it's the centerpiece of central park and bart tunneled under it. more from david louie. >> three years of digging under the park is over and bart invited the public in. it's a crucial link for bart trains to reach a fremont station and san jose. >> we are half mile south of existing station. new warm springs station is five miles down the way. they were among the first take the tour. >> the depth, how far you had to go down, that amazed me. >> they are thrilled the project came in under project. it was budgeted for $249 million but the bid came in at $137 million, a savings of $112 million a result of downturn in construction work. the mayor says the tunnel came about after the city went to court plans to build elevated tracks.